The purpose of this project was to understand the difficulties encountered in the proper placement of secondary controls on an automotive instrument panel while driving a rented car on a short-term basis, such as provided through a service such as Zip Car. Suggested interaction design guidelines for designing a sharing-friendly car were the outcome. The results of the project suggest the most common contemporary control locations and interaction types should be used to improve usability. A summary of the guidelines is provided at the end of the video.